Is this spell any good?
It's a 7th level wu jen/maho Necromancy spell. Make a melee touch attack; if the target fails their save, they then take 1 point of Str and 1 point of Con damage per 2 caster levels. If you crit the touch attack, it becomes permanent Str and Con drain.
Disintegrate is also a 7th level wu jen spell that kills on a failed save (or, in 3.5E, does a minimum 30d6 damage). It also has the benefit of being a ranged spell, so you don't have to get up close and personal with icky monsters who want to eat your brain. Finally, if they make their save, you still do (a small amount of) damage.
Destruction is also a 7th level maho spell that kills on a failed save, and is a targeted spell that doesn't require any sort of attack roll.
What would be the benefit for either a wu jen or a maho-tsukai of taking withering palm?
It's a 7th level wu jen/maho Necromancy spell. Make a melee touch attack; if the target fails their save, they then take 1 point of Str and 1 point of Con damage per 2 caster levels. If you crit the touch attack, it becomes permanent Str and Con drain.
Disintegrate is also a 7th level wu jen spell that kills on a failed save (or, in 3.5E, does a minimum 30d6 damage). It also has the benefit of being a ranged spell, so you don't have to get up close and personal with icky monsters who want to eat your brain. Finally, if they make their save, you still do (a small amount of) damage.
Destruction is also a 7th level maho spell that kills on a failed save, and is a targeted spell that doesn't require any sort of attack roll.
What would be the benefit for either a wu jen or a maho-tsukai of taking withering palm?